Internet Access with Jailbroken PS3?

Do you guys disconnect the network after you jailbreak your PS3 in hopes of not getting on a ban list?

Is there any reason to leave the internet connected? (Pandora comes to mind here)

What is best practice for network connection after jailbreaking your PS3? I thought about just putting in a fake gateway in the network settings. This way I could still use my local network, but nothing to the internet.

I just use standard network settings as you can't get on PSN it doesn't make a difference, I still use normal internet for youtube videos and catch up tv, BBC Iplayer etc, can't see how you can be banned when ur not even on the network